I'm not sure what to do. My hens have eaten away at the filter covering the AC. I have a VERY small yard and can't keep them contain to one side of the yard because it is so small. I also don't want to confine them to their coop. I'm trying to figure out how to keep them from eating it. Also, this is concerning because I don't know about the safety of eating their eggs now... :/. It is one thing to eat all my plants, but I can't have them ruin my AC.